The Crystal Katana will help you with anything involved with rhinestones. The Crystal Katana 2-1 wooden tool has the rubber grip on one end, which easily picks up flat back rhinestones. On the opposite end is the chrome tip, which secures the flat back rhinestones in place. There is also an additional add on tool, which can be used in place of the chrome tip. This tip secures down smaller flat backs sizes ss9 to ss5.